What does it mean when the check engine light comes on in a Hyundai Elantra?

What does it mean when the check engine light comes on in a Hyundai Elantra?

If the check engine light in your 2018 Hyundai Elantra starts flashing, that means that the problem needs sudden attention and your Hyundai should be brought in rapidly. This twinkling light usually expresses a rigid engine misfire allowing unburned fuel to be dumped into the exhaust system.

How do you reset the check engine light on a Hyundai Elantra?

To reset the check engine light in your 2017 hyundai elantra vehicle, try disconnecting the battery cables for 10-15 minutes and then reconnecting them, or turn your ignition key to the “on” and then “off” position twice, followed by starting the engine and the light should disappear.

How do you read an engine error code?

1. How to read OBD codes: Preparation.
2. Step 1: Plug the OBD scanner into the OBD port.
3. Step 2: Turn on the ignition.
4. Step 3: Enter the Vehicle Identification Number.
5. Step 4: Find OBD codes in the menu.
6. Step 5: Interpret the first character of the OBD code.
7. Step 6: Interpret the second character of the OBD code.

What does check engine light mean on Hyundai Elantra?

A check engine light can indicate a broad spectrum of problems with your 2017 Hyundai Elantra. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light.

Why does my Hyundai Elantra have a misfire code?

The engine is also not firing all of the fuel, so raw fuel is also passing through cylinder 3 into the exhaust. Mileage may suffer as well when your Elantra has P0303. P0303 is a cylinder specific misfire code, which means that Cylinder 3 is misfiring and causing the code.

Where is cylinder 3 on a Hyundai Elantra?

An important thing to understand when finding the location of cylinder 3 is that it’s going to be the 3’rd cylinder in the firing order of the vehicle, and not the 3’rd cylinder that you might see when looking at the engine. The P0303 trouble code will trigger the Elantra’s service engine soon light. The vehicle itself may begin to run rough.

What causes Hyundai Elantra to get a p0303 trouble code?

There are quite a few things that can cause the P0303 trouble code to trigger the Hyundai Elantra . Here are the most common problems that will throw the code. They are presented somewhat in order from most to least likely to be causing the code: Bad Spark Plugs – Spark plugs are one of the most common causes of P0303.